To edit a table content:-
1. se16n

• type &sap_edit into the command input
• then execute and there is a delete /edit icon below the menu bar

2. se11

• double click the enty that you wish to change
• type /h into the command input also known as debugging mode
• press enter
• in the debugging mode change the variable code = EDIT
• then execute and now the field can be edited